mozilla-release/layout/reftests/text/auto-hyphenation-xmllang-13b.xhtml

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head><title>Hyphenation test</title></head>
<!-- check that innermost beats xml:lang vs. lang difference -->
<body xml:lang="x-unknown-language">
<div lang="en-us">
<div style="width: 5em; hyphens: auto; font-family:sans-serif;">
supercalifragilisticexpialidocious
</div>
</div>
</body>
</html>